Home / 221,109.18-331,002.80-135,450.20

Finding the Fourth Proportional to 221,109.18, 331,002.80 and 135,450.20

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Solution

The fourth proportional to 221,109.18, 331,002.80 and 135,450.20 is: 202,770.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,109.18 : 331,002.80 = 135,450.20 : x
  2. Step 2: Convert to fraction form
    221,109.18/331,002.80 = 135,450.20/x
  3. Step 3: Cross multiply
    221,109.18x = 331,002.80 × 135,450.20
  4. Step 4: Simplify right side
    221,109.18x = 44,834,395,460.56
  5. Step 5: Solve for x
    x = 44,834,395,460.56/221,109.18
  6. Step 6: Final answer
    x = 202,770.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.